Opamp soldering temperature?

Thunau · 17th September 2003, 01:07 AM

How hot can I go while soldering OPA 2134s? Can I damage them by using 650 deg F setting?
I'm new to this and the opamps are the last to go in the circuit boards.
Everything else is in place, I'm itching to finish the boards tonight.
Hurry!!!!!! Please

!!!!!

Peter Daniel · 17th September 2003, 01:08 AM

650 F won't damage the chip, but don't solder it too long

I usually use 750F and it works fine too. Adjust for lowest comfortable setting, where solder flows nicely.

Thunau · 17th September 2003, 01:10 AM

Thanks,
This was the quickest reply ever! You da Man!

peranders · 17th September 2003, 05:26 AM

Don't use to high temperature if you can choose. 270(518F)-370(698)F deg C give good results. Lower is better better because the flux have time to do some good. 450 (848F) deg (which my iron has) is only needed when you have much metal to heat up.

sam9 · 17th September 2003, 06:23 AM

I get around this by using sockets if possible. Some have reported that the extra signal length from using sockets can cause problems such as oscillation. I won't argue the likelthood of that, but must note that I have not experienced that. The experience includes OPA2134s. Maybe I've been lucky, but so far the advantages of sockets have out weighed any disadvantages.

peranders · 17th September 2003, 07:49 AM

I use sockets only for the first prototype. At work I never use sockets, only costs money.

You have to look out for high speed devices and sockets. This extra lenth may create unwanted inductances and/or antennas (=problems)

If you do want to use sockets use only those with round holes and good contacts. The cheap ones with flat springs are useless in the long run. Low contact pressure and bad contact with time.

OPA2134 is a "low speed" device. If you use a > 0.5kVus you must watch out.

Peter Daniel · 17th September 2003, 01:03 PM

That is true. If the device is to be mounted permanently, the sockets are useless.

phase_accurate · 17th September 2003, 01:08 PM

Quote:

That is true. If the device is to be mounted permanently, the sockets are useless.

Agreed !
After some time they can even get a PITA !

Regards

Charles

peranders · 17th September 2003, 01:17 PM

OK, let me point out that sockets with "tulip" contacts, easy to push in, hard (or very hard) to pull out is the type you should go for. AVOID low price sockets. = bad contact = noise and other troubles. These cheap sockets have also amazing property: The IC can pop out with time, unbelievable. I have an preamp which is on my desk (small or none vibrations) and a few opamps were totally loose. The sockets were Texas Instruments and cheap a model.

fmak · 17th September 2003, 02:22 PM

Quote:

Originally posted by peranders
Don't use to high temperature if you can choose. 270(518F)-370(698)F deg C give good results. Lower is better better because the flux have time to do some good. 450 (848F) deg (which my iron has) is only needed when you have much metal to heat up.

--------------------------------------------------------------------
Agree, 300 C is plenty enough for a low melting point silver bearing solder with a decent iron. Some solders wet better than others.

17th September 2003, 01:07 AM	#1
Thunau diyAudio Member Join Date: Mar 2001 Location: PA USA	Opamp soldering temperature? How hot can I go while soldering OPA 2134s? Can I damage them by using 650 deg F setting? I'm new to this and the opamps are the last to go in the circuit boards. Everything else is in place, I'm itching to finish the boards tonight. Hurry!!!!!! Please !!!!! __________________ "Most people just say what they know, the wise ones know just what to say."

17th September 2003, 01:08 AM	#2
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	650 F won't damage the chip, but don't solder it too long I usually use 750F and it works fine too. Adjust for lowest comfortable setting, where solder flows nicely. __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

17th September 2003, 01:10 AM	#3
Thunau diyAudio Member Join Date: Mar 2001 Location: PA USA	Thanks, This was the quickest reply ever! You da Man! __________________ "Most people just say what they know, the wise ones know just what to say."

17th September 2003, 05:26 AM	#4
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	Don't use to high temperature if you can choose. 270(518F)-370(698)F deg C give good results. Lower is better better because the flux have time to do some good. 450 (848F) deg (which my iron has) is only needed when you have much metal to heat up. __________________ /Per-Anders (my first name) or P-A as my friends call me

17th September 2003, 07:49 AM	#6
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	I use sockets only for the first prototype. At work I never use sockets, only costs money. You have to look out for high speed devices and sockets. This extra lenth may create unwanted inductances and/or antennas (=problems) If you do want to use sockets use only those with round holes and good contacts. The cheap ones with flat springs are useless in the long run. Low contact pressure and bad contact with time. OPA2134 is a "low speed" device. If you use a > 0.5kVus you must watch out. __________________ /Per-Anders (my first name) or P-A as my friends call me


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

17th September 2003, 06:23 AM	#5
sam9 diyAudio Member Join Date: Jun 2002 Location: Left Coast	I get around this by using sockets if possible. Some have reported that the extra signal length from using sockets can cause problems such as oscillation. I won't argue the likelthood of that, but must note that I have not experienced that. The experience includes OPA2134s. Maybe I've been lucky, but so far the advantages of sockets have out weighed any disadvantages.

17th September 2003, 01:03 PM	#7
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	That is true. If the device is to be mounted permanently, the sockets are useless. __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

17th September 2003, 01:17 PM	#9
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	OK, let me point out that sockets with "tulip" contacts, easy to push in, hard (or very hard) to pull out is the type you should go for. AVOID low price sockets. = bad contact = noise and other troubles. These cheap sockets have also amazing property: The IC can pop out with time, unbelievable. I have an preamp which is on my desk (small or none vibrations) and a few opamps were totally loose. The sockets were Texas Instruments and cheap a model. __________________ /Per-Anders (my first name) or P-A as my friends call me

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
WBT Silver Solder Soldering Temperature	mhconley	Parts	11	5th November 2009 12:58 AM
How does OKi MFR soldering station set tip temperature?	speakerguy79	Parts	0	25th March 2008 08:02 PM
Correct soldering temperature.	Nordic	Equipment & Tools	4	4th November 2007 07:43 PM
Soldering temperature for PCB?	jholtz	Digital Source	4	6th June 2005 09:18 AM
Soldering station temperature	raincheck	Parts	0	18th July 2002 05:44 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read